Clean Water Act discharge permit · NPDES NM0028355
UNIVERSITY OF CALIFORNIA, Los Alamo, NM: NPDES NM0028355 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 53Pollutants under a numeric limit
- 13Pollutants with an effluent exceedance
UNIVERSITY OF CALIFORNIA, held by LOS ALAMOS NATIONAL LABORATORY, holds NPDES permit NM0028355, which discharges to Sandia Canyon,Rio Grande Basin. EPA’s file records it issued March 30, 2022 and expiring April 30, 2027. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | UNIVERSITY OF CALIFORNIA |
|---|---|
| Permittee as filed | LOS ALAMOS NATIONAL LABORATORY |
| NPDES ID | NM0028355 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Federal facility |
| Issued | March 30, 2022 |
| Expiration date | April 30, 2027 |
| Address | Los Alamo, NM 87544 |
| Receiving water | SANDIA CANYON,RIO GRANDE BASIN |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Los Alamos Canyon (HUC 130201011303) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 64Pollutants on file
- 53Under a numeric limit
- 56With a violation of any kind
- 13With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant; the 60 with the most exceedances of 64 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Chlorine, total residual | 10 | 121 | 50 | July 31, 2026 | 99,999% over the limit |
| Copper, total [as Cu] | 12 | 67 | 15 | July 31, 2022 | 3,079% over the limit |
| Polychlorinated biphenyls [PCBs] | 24 | 19 | 15 | December 31, 2025 | 113,025% over the limit |
| pH | 22 | 85 | 9 | May 31, 2022 | |
| Whole effluent toxicity | 2 | 13 | 4 | January 31, 2023 | 44% over the limit |
| Solids, total suspended | 28 | 105 | 3 | March 31, 2009 | 673% over the limit |
| E. coli | 6 | 14 | 3 | January 31, 2026 | 99,999% over the limit |
| Oxygen demand, chem. [high level] [COD] | 4 | 18 | 2 | September 30, 2021 | 24% over the limit |
| Copper, dissolved [as Cu] | 2 | 9 | 2 | September 30, 2021 | 747% over the limit |
| Temperature, water deg. centigrade | 2 | 5 | 2 | July 31, 2020 | 5% over the limit |
| Phosphorus, total [as P] | 12 | 53 | 1 | September 30, 2003 | 25% over the limit |
| Arsenic, total [as As] | 2 | 43 | 1 | December 31, 2010 | 35% over the limit |
| Whole Effluent Toxicity [WET] - C. dubia | 1 | 1 | 1 | September 30, 2025 | 68% over the limit |
| Flow, in conduit or thru treatment plant | 22 | 77 | 0 | ||
| Mercury, total [as Hg] | 4 | 50 | 0 | ||
| Zinc, total [as Zn] | 6 | 48 | 0 | ||
| Chromium, total [as Cr] | 2 | 48 | 0 | ||
| Lead, total [as Pb] | 2 | 48 | 0 | ||
| Cadmium, total [as Cd] | 0 | 48 | 0 | ||
| Selenium, total [as Se] | 2 | 42 | 0 | ||
| Radium 226 + radium 228, total | 2 | 38 | 0 | ||
| Boron, total [as B] | 0 | 38 | 0 | ||
| Cobalt, total [as Co] | 0 | 38 | 0 | ||
| Vanadium, total [as V] | 0 | 38 | 0 | ||
| Aluminum, total [as Al] | 0 | 38 | 0 | ||
| Tritium, total | 0 | 38 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 2 | 28 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 2 | 28 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 2 | 28 | 0 | ||
| BOD, 5-day, 20 deg. C | 8 | 20 | 0 | ||
| Organics, total toxic [TTO] | 4 | 16 | 0 | ||
| RDX, total | 2 | 14 | 0 | ||
| Nickel, total [as Ni] | 0 | 10 | 0 | ||
| Coliform, fecal general | 0 | 10 | 0 | ||
| Aluminum, total recoverable | 8 | 9 | 0 | ||
| Perchlorate [ClO4] | 4 | 8 | 0 | ||
| Trinitrotoluene [TNT], total | 2 | 8 | 0 | ||
| Oil & Grease | 2 | 4 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 4 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 1 | 4 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 4 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 1 | 4 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 4 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 1 | 4 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 4 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 1 | 4 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 1 | 4 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 1 | 4 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 4 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 1 | 4 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 4 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 1 | 4 | 0 | ||
| Sulfite [as SO3] | 0 | 4 | 0 | ||
| Iron, total [as Fe] | 0 | 4 | 0 | ||
| Cyanide, total [as CN] | 4 | 2 | 0 | ||
| Mercury, dissolved [as Hg] | 0 | 2 | 0 | ||
| Thallium, total [as Tl] | 6 | 0 | 0 | ||
| Alpha, gross adjusted | 6 | 0 | 0 | ||
| Whole effluent toxicity - retest #1 | 3 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 3 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 79Single-event violations
The newest 50 of 79.
| Date | What EPA recorded | Agency |
|---|---|---|
| April 4, 2026 | Dry-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | EP6 |
| February 22, 2026 | Effluent Violations - Unauthorized Discharge | EP6 |
| December 23, 2025 | Effluent Violations - Unapproved Bypass | EP6 |
| August 12, 2025 | Dry-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | EP6 |
| March 21, 2025 | Effluent Violations - Industrial Spill | EP6 |
| January 14, 2025 | Wet-weather anticipated prohibited bypass discharge to waters of the U.S. | EP6 |
| October 24, 2024 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | EP6 |
| August 30, 2024 | Permit Violations - Violation Specified in Comment | EP6 |
| August 26, 2024 | Permit Violations - Violation Specified in Comment | EP6 |
| August 17, 2024 | Permit Violations - Violation Specified in Comment | EP6 |
| July 3, 2024 | Permit Violations - Violation Specified in Comment | EP6 |
| July 2, 2024 | Permit Violations - Violation Specified in Comment | EP6 |
| June 28, 2024 | Permit Violations - Violation Specified in Comment | EP6 |
| June 26, 2024 | Permit Violations - Violation Specified in Comment | EP6 |
| June 13, 2024 | Permit Violations - Violation Specified in Comment | EP6 |
| June 12, 2024 | Effluent Violations - Numeric effluent violation | EP6 |
| June 4, 2024 | Effluent Violations - Approved Bypass | EP6 |
| April 22, 2024 | Permit Violations - Violation Specified in Comment | EP6 |
| April 2, 2024 | Effluent Violations - Numeric effluent violation | EP6 |
| August 12, 2023 | Permit Violations - Violation Specified in Comment | EP6 |
| August 8, 2023 | Permit Violations - Violation Specified in Comment | EP6 |
| July 9, 2023 | Permit Violations - Violation Specified in Comment | EP6 |
| February 13, 2023 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | EP6 |
| March 15, 2022 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | EP6 |
| March 3, 2022 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | EP6 |
| February 18, 2022 | Effluent Violations - Numeric effluent violation | EP6 |
| February 10, 2022 | Effluent Violations - Numeric effluent violation | EP6 |
| January 26, 2022 | Permit Violations - Violation Specified in Comment | EP6 |
| December 2, 2021 | Permit Violations - Violation Specified in Comment | EP6 |
| July 2, 2021 | Permit Violations - Violation Specified in Comment | EP6 |
| June 24, 2021 | Effluent Violations - Numeric effluent violation | EP6 |
| June 23, 2021 | Permit Violations - Violation Specified in Comment | EP6 |
| June 23, 2021 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | EP6 |
| June 14, 2021 | Permit Violations - Violation Specified in Comment | EP6 |
| June 14, 2021 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | EP6 |
| June 1, 2021 | Permit Violations - Violation Specified in Comment | EP6 |
| March 2, 2021 | Permit Violations - Violation Specified in Comment | EP6 |
| February 22, 2021 | Permit Violations - Violation Specified in Comment | EP6 |
| February 15, 2021 | Permit Violations - Violation Specified in Comment | EP6 |
| August 3, 2020 | Effluent Violations - Unapproved Bypass | EP6 |
| June 25, 2020 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | EP6 |
| June 8, 2020 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | EP6 |
| February 14, 2020 | Permit Violations - Violation Specified in Comment | EP6 |
| January 24, 2020 | Permit Violations - Violation Specified in Comment | EP6 |
| December 23, 2019 | Permit Violations - Violation Specified in Comment | EP6 |
| December 1, 2019 | Permit Violations - Violation Specified in Comment | EP6 |
| November 20, 2019 | Effluent Violations - Numeric effluent violation | EP6 |
| August 12, 2019 | Permit Violations - Violation Specified in Comment | EP6 |
| July 26, 2019 | Permit Violations - Violation Specified in Comment | EP6 |
| July 22, 2019 | Permit Violations - Violation Specified in Comment | EP6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.